package com.quiz.bis.service.impl;

import com.quiz.bis.domain.model.Paper;
import com.quiz.bis.domain.model.PaperTemplate;
import com.quiz.bis.domain.model.Question;
import com.quiz.bis.domain.model.QuestionTypeConfig;
import com.quiz.bis.mapper.*;
import com.quiz.bis.service.ITemplatePaperGenerateService;
import com.quiz.common.core.domain.R;
import lombok.RequiredArgsConstructor;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

/**
 * @author ahuan
 */
@Service
@RequiredArgsConstructor
public class TemplatePaperGenerateServiceImpl implements ITemplatePaperGenerateService {

    private final PaperTemplateMapper templateMapper;
    private final QuestionMapper questionMapper;
    private final PaperMapper paperMapper;
    private final PaperQuestionMapper paperQuestionMapper;
    private final QuestionStatisticsMapper questionStatisticsMapper;

    @Override
    @Transactional
    public R<String> generatePaperByTemplate(Long templateId) {
        PaperTemplate template = templateMapper.selectById(templateId);
        if (template == null || template.getDelFlag() == 1) {
            return R.fail("试卷模板不存在");
        }

        // 解析模板配置
        List<QuestionTypeConfig> questionConfigs = parseTemplateConfig(template.getConfigJson());

        // 生成试卷
        Paper paper = createPaper(template);
        paperMapper.insert(paper);

        // 按题型选择题目
        for (QuestionTypeConfig config : questionConfigs) {
            List<Question> questions = selectQuestions(config);
            addQuestionsToPaper(paper, questions, config);
        }

        return R.ok("试卷生成成功，试卷ID: " + paper.getId());
    }

    private void addQuestionsToPaper(Paper paper, List<Question> questions, QuestionTypeConfig config) {

    }

    private List<Question> selectQuestions(QuestionTypeConfig config) {
        return null;
    }

    private Paper createPaper(PaperTemplate template) {
        return null;
    }

    private List<QuestionTypeConfig> parseTemplateConfig(String configJson) {
        return null;
    }

    // 其他方法实现...
}